AU5350586A - Dust extractors - Google Patents

Dust extractors

Info

Publication number
AU5350586A
AU5350586A AU53505/86A AU5350586A AU5350586A AU 5350586 A AU5350586 A AU 5350586A AU 53505/86 A AU53505/86 A AU 53505/86A AU 5350586 A AU5350586 A AU 5350586A AU 5350586 A AU5350586 A AU 5350586A
Authority
AU
Australia
Prior art keywords
dust extractors
extractors
dust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU53505/86A
Other versions
AU593540B2 (en
Inventor
Gordon Sydney Jensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU53505/86A priority Critical patent/AU593540B2/en
Publication of AU5350586A publication Critical patent/AU5350586A/en
Application granted granted Critical
Publication of AU593540B2 publication Critical patent/AU593540B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices
    • B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
AU53505/86A 1985-01-22 1986-01-22 Dust extractors Ceased AU593540B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53505/86A AU593540B2 (en) 1985-01-22 1986-01-22 Dust extractors

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPG897685 1985-01-22
AUPG8976 1985-01-22
AUPH029485 1985-04-24
AUPH0294 1985-04-24
AU53505/86A AU593540B2 (en) 1985-01-22 1986-01-22 Dust extractors

Publications (2)

Publication Number Publication Date
AU5350586A true AU5350586A (en) 1986-08-13
AU593540B2 AU593540B2 (en) 1990-02-15

Family

ID=27154875

Family Applications (1)

Application Number Title Priority Date Filing Date
AU53505/86A Ceased AU593540B2 (en) 1985-01-22 1986-01-22 Dust extractors

Country Status (1)

Country Link
AU (1) AU593540B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110757997A (en) * 2018-10-27 2020-02-07 高宏福 Closed blackboard eraser box

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1540996A (en) * 1922-07-03 1925-06-09 George A Marshall Cleaner for blackboard erasers
US1908670A (en) * 1930-07-21 1933-05-09 Joseph M Horton Eraser cleaning machine
US3262144A (en) * 1964-01-27 1966-07-26 Avila Blas Pedro Eraser cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110757997A (en) * 2018-10-27 2020-02-07 高宏福 Closed blackboard eraser box

Also Published As

Publication number Publication date
AU593540B2 (en) 1990-02-15

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